While looks are important they are not everything. Many of us have experienced being with a good looking girl yet disappointed with everything else.
The conversation becomes a struggle and the only thing left is sex and if that is disappointing then the rest is history. Even if the sex is good the relationship will not last or be healthy for the long term.
To really make a girl like you, you have to understand what she is looking for. The last thing she wants is some guy who is insecure. It is human nature to seek security and that is why our brains work overtime seeking ways to improve our situation in life.
Secondly she will not want a guy who is insincere. Sincerity and sensitivity go hand in hand and both relate to how you treat others. Remember as human beings we also like to make good impressions. That is why we all like to buy fancy cars and clothes. If you are impolite and rough around the edges then you will be difficult to be around.
Thirdly a little intelligence goes a long way. Being able to hold up a conversation and being adaptable makes you interesting and spontaneous. We all like being around interesting people. Then throw in a little humor to put the icing on the cake.
To conclude keep it simple and don't take yourself too seriously. Guy's if you are serious about getting the girl of your dreams then you need to seriously work on solid techniques to achieve your goal. If you know what a girl is thinking it is far easier to approach her.